Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763277AbXKCAJu (ORCPT ); Fri, 2 Nov 2007 20:09:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761885AbXKCACE (ORCPT ); Fri, 2 Nov 2007 20:02:04 -0400 Received: from mx1.suse.de ([195.135.220.2]:41165 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756474AbXKCACC (ORCPT ); Fri, 2 Nov 2007 20:02:02 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , Kay Sievers Subject: [PATCH 29/54] kset: convert struct bus_device->drivers to use kset_create Date: Fri, 2 Nov 2007 16:59:07 -0700 Message-Id: <1194047972-9850-29-git-send-email-gregkh@suse.de> X-Mailer: git-send-email 1.5.3.4 In-Reply-To: <20071102235758.GA9803@kroah.com> References: <20071102235758.GA9803@kroah.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3326 Lines: 97 Dynamically create the kset instead of declaring it statically. Having 3 static kobjects in one structure is not only foolish, but ripe for nasty race conditions if handled improperly. We also rename the field to catch any potential users of it (not that there should be outside of the driver core...) Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/bus.c | 15 ++++++++------- drivers/base/driver.c | 2 +- include/linux/device.h | 2 +- 3 files changed, 10 insertions(+), 9 deletions(-) diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 67b8ca2..5ddc2e8 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -639,7 +639,7 @@ int bus_add_driver(struct device_driver *drv) error = kobject_set_name(&drv->kobj, "%s", drv->name); if (error) goto out_put_bus; - drv->kobj.kset = &bus->drivers; + drv->kobj.kset = bus->drivers_kset; drv->kobj.ktype = &driver_ktype; error = kobject_register(&drv->kobj); if (error) @@ -870,11 +870,12 @@ int bus_register(struct bus_type * bus) goto bus_devices_fail; } - kobject_set_name(&bus->drivers.kobj, "drivers"); - bus->drivers.kobj.parent = &bus->subsys.kobj; - retval = kset_register(&bus->drivers); - if (retval) + bus->drivers_kset = kset_create_and_register("drivers", NULL, + &bus->subsys.kobj, NULL); + if (IS_ERR(bus->drivers_kset)) { + retval = PTR_ERR(bus->drivers_kset); goto bus_drivers_fail; + } klist_init(&bus->klist_devices, klist_devices_get, klist_devices_put); klist_init(&bus->klist_drivers, NULL, NULL); @@ -894,7 +895,7 @@ int bus_register(struct bus_type * bus) bus_attrs_fail: remove_probe_files(bus); bus_probe_files_fail: - kset_unregister(&bus->drivers); + kset_unregister(bus->drivers_kset); bus_drivers_fail: kset_unregister(bus->devices_kset); bus_devices_fail: @@ -917,7 +918,7 @@ void bus_unregister(struct bus_type * bus) pr_debug("bus %s: unregistering\n", bus->name); bus_remove_attrs(bus); remove_probe_files(bus); - kset_unregister(&bus->drivers); + kset_unregister(bus->drivers_kset); kset_unregister(bus->devices_kset); bus_remove_file(bus, &bus_attr_uevent); subsystem_unregister(&bus->subsys); diff --git a/drivers/base/driver.c b/drivers/base/driver.c index eb11475..1c9770d 100644 --- a/drivers/base/driver.c +++ b/drivers/base/driver.c @@ -185,7 +185,7 @@ void driver_unregister(struct device_driver * drv) */ struct device_driver *driver_find(const char *name, struct bus_type *bus) { - struct kobject *k = kset_find_obj(&bus->drivers, name); + struct kobject *k = kset_find_obj(bus->drivers_kset, name); if (k) return to_drv(k); return NULL; diff --git a/include/linux/device.h b/include/linux/device.h index 094d71d..f6eaa33 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -54,7 +54,7 @@ struct bus_type { struct module * owner; struct kset subsys; - struct kset drivers; + struct kset *drivers_kset; struct kset *devices_kset; struct klist klist_devices; struct klist klist_drivers; -- 1.5.3.4 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/